基于AMMI模型的区域试验玉米新品种的稳定性和适应性评价

Evaluation of Stability and Adaptability of New Maize Varieties in Regional Test of Guizhou Province by AMMI Model

以2009年贵州省玉米新品种区域试验C组各承试点的产量为资料,应用AMMI(additive main effects and multiplicative interaction,又称为主效可加互作可乘)模型对小区产量的基因型、环境和基因型与环境(G×E)互作进行了探讨。结果表明:AMMI模型很好地解释了玉米新品种产量性状的基因型效应、环境效应和G×E互作效应。根据AMMI双标图和分析结果可以得出以下结论:小区产量高且稳定的品种有C2、C6和C8(10.689～11.433kg),相对稳定的品种有C7、C10和CK(10.071～10.594kg),高产但较不稳定的品种有C3和C4(10.571～11.055kg),产量低也不稳定的品种是C1、C5和C9(9.543～10.157kg);试点E1、E5和E2的分辨力较强,E6、E7和E3的分辨力较弱。

Those 11 rice varieties were rooted in C group of regional tests in 2009 year and were analyzed as the experiment materials.The maize yield/plant was measured and analyzed by AMMI（additive main effects and multiplicative interaction） model.The article discussed the genotype,environment and interactive effects of genotype by environment（G×E） of maize yield/plant.The model explained clearly the genotype, environment and G×E interactions on yield trait in maize cultivars.AMMI plots and data analysis showed that the most stable and high output cultivars were C2,C6 and C8（10.689 - 11.433 kg）.The relative stable ones were C7,C10 and CK（10.071 -10.594 kg）.The high yield but less unstable cultivars were C3 and C4（10.571 -11.055 kg）.The lower yield and unstable cultivars were C1,C5 and C9（9.543 - 10.157 kg）.Test site E1,E2 and E5 had strong discrimination,and Test site E3,E6 and E7 had relatively weak discrimination.